Home / 163,400.16-225,517.25-99,775.20

Finding the Fourth Proportional to 163,400.16, 225,517.25 and 99,775.20

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Solution

The fourth proportional to 163,400.16, 225,517.25 and 99,775.20 is: 137,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,400.16 : 225,517.25 = 99,775.20 : x
  2. Step 2: Convert to fraction form
    163,400.16/225,517.25 = 99,775.20/x
  3. Step 3: Cross multiply
    163,400.16x = 225,517.25 × 99,775.20
  4. Step 4: Simplify right side
    163,400.16x = 22,501,028,722.20
  5. Step 5: Solve for x
    x = 22,501,028,722.20/163,400.16
  6. Step 6: Final answer
    x = 137,705.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.